Gaya APA
Permana, Z.
().
CD: Metodologi Penelitian (2): formulating research problem
(
-)
.
s.l:
Zein Permana.
Gaya MLA
Permana, Zein.
"CD: Metodologi Penelitian (2): formulating research problem".
-
s.l:
Zein Permana,
.
CD-ROM.